add ok return type

Signed-off-by: Alejandro M. Ramallo <[email protected]>

Author: aramallo

CHANGELOG.md

@@ -1,5 +1,8 @@
 # CHANGELOG
 # v5.0.0-rc.14
+## Changes
+* Add `ok` as valid return for `exchange` callback in `partisan_plumbtree_broadcast_handler`.
+# v5.0.0-rc.14
 ## Fixes
 * Fixes the case where `partisan_plumbtree_broadcast` behaviour implementors' callbacks throw an exception which would crash the broadcast server.
 * Replace use of RPC in `partisan_plumbtree_broadcast` and use 

src/partisan.app.src

@@ -2,7 +2,7 @@
     {description,
         "Partisan is a scalable and flexible, TCP-based membership system and distribution layer for the BEAM."
     },
-    {vsn, "5.0.0-rc.14"},
+    {vsn, "5.0.0-rc.15"},
     {registered, []},
     {applications, [
         kernel,

src/partisan_plumtree_broadcast_handler.erl

@@ -72,7 +72,7 @@
 %% The exchange does not need to account for messages in-flight when it is
 %% started or broadcast during its operation. These can be taken care of in
 %% future exchanges.
--callback exchange(node()) -> {ok, pid()} | {error, term()} | ignore.
+-callback exchange(node()) -> ok | {ok, pid()} | {error, term()} | ignore.
 
 
 -optional_callbacks([broadcast_channel/0]).